Motor vehicle



H. n. CHURCH AND E. G. GUHN.

IvloToH VEHICLE.

APPLICATION FILED APRx 9. 1919.

1,430,945, Patentd Oct. 3, 1922.

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MOTOR VEHICLE.

APPucATnoN FILED PR. 9, 1919.

Patented Oct. 3, 1922.

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HAROLD D. CHURCH AND EARL G. GUNN, OF DETROIT, MICHIGAN, ASSIGNORS T0 PACKARD MOTOR CAR COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

MOTOR VEHICLE.

of the shackle.

Another object of the invention is to provide effective means of a simple construction vfor retaining the oil within the bearings of the shackle.

`With these objects and others 1n view,

.this invention is embodied inpreferable form in the construction hereinafter described and illustrated in the accompanying drawings, in which- Fig. 1 is a vertical sectional view, partly in elevation, of a front axle spring shackle embodying the invention;

Fig, 2 is an end view of such construction.

Fig. 3 is a section on the line 3-3 of Fig. 1;

Fig. 4 is a perspective view of the washer employed in the-construction illustrated in the above views;

Fig. 5 is a vertical section illustrating another form of the invention and showing the same applied to the shackle at the front end of the rear spring;

Fig. 6 is a detail perspective of the washer employed in the construction shown in Fig. 5;

Fig. 7 is a vertical section of another form of the invention;

Fig. 8 is a vertical section of another of the invention; and- Fig. 9 is a detail perspective view of the washer employed in the construction illustrated in Fig. 8.

Referring to the drawings, and rst to the construction shown in Figs. l t0 4 inclusive, 10 indicates a housing formed at the end of one of the side members of the form frame and 11 indicates the eye at the end of the frame which surrounds the bolt of the shackle. rlhe upper bolt is indicated by 12 and it is adapted to connect the two arms 13 and 14 of the shackle body. This bolt has a channel 15 extending from a point near one end thereof to substantially the center of the bolt. One end of the channel communicates with an oil cup 16 and the other end with a passage 17 leading to the surfaceof the bolt so as to convey the lubricant to the bearings between the frame and bolt. Surrounding'the bolt is a bushing 18 constituting in effect a washer fixed to the bushing sleeve and which at .one end thereof is provided with a radial flange -19 from which extends an axial fiange 20. The flange 20 is adapted to enter' an annular recess 21 formed in the head 14 of the body of the shackle. A packing 22 is placed in this recess, sealing the end ofthe vbushing and the shackle arm head against the escape of lubricant. y

Mounted between the flange 19 and the head 14 is a washer 23 having on one'face Athereof a,l spherical surface adapted to lit within a complementary spherical depression formed in the head 14. The other 'end of the bushing 18 bears against an annular plate 24 which is provided with an axial flange 25 extending into a recess 26 carrying a packing 27. The plate 24 corresponds to the flange 19 at the other end o f the bushing and is made separate from said bushing for the purpose of facilitating the assemblage of the parts, Mounted between this plate and the head 13 is` a washer .28 having a spherical surface which fits 'within a correspondingly shaped depression in the head. The bolt 12 is provided at one end with a nut 29. When this bolt is tightened so asto draw the shackle arms toward one an ther f and against the frame, either in the or ginal adjustment of the parts or to take up wear, the spherical surfaces of the washers Will provide a full bearing against the heads of the shackle arms under all conditions of wear. f

They depending shackle arms 30 are adapted to receive in their lower heads 31, a bolt 32 which is provided with a ti htening nut 33 similarly to that described; with reference to the upper bolt and is also' provided with an oil cup 34 and an oil conveying channel 35. Bushings 36 surround the bolt and surrounding these bushings in turn is a spring eye 37 forming part of the rear end of a leaf of the rear spring of a motor vehicle. Each bushing is formed at one end similarly to the right hand end of the bushing 18 of the upper bolt and. a washer 38 having the spherical surface adapted to fit a correspondingly formed recess in the head 31' is interposed between said head and the flanged end of the bushing and is adapted to provide a full bearing when the parts are drawn together to take up play or wear as described in respect to the parts at the upper end of the shackle. The heads of the shackle are split and provided with tightening bolts 39. 4() is a dust guard. y

In Figs. 5 and 6, another form of shackle is employed in which 41 indicates the shackle arms 42, the heads of the shackle adapted to surround and be connected by the channel bolt 43 which is provided with a tightening nut 44 atone end thereof beyond one of the heads 42. 45 indicates the spring eye. In this construction the bushing 46 interposed between the springv eye and the bolt is providedwith a radially extending seat 47 which is spherical inform and is adapted to receive and Contact with the spherical radially extending surface of a washer 48 the outer surface of which is flat and bears against the head of the shackle arm. rlhe Washer is provided with opposite recesses 49 adapted to engage keys 50 projecting from the head. rl`his arrangement enables washers similar in construction to be employed at opposite ends of the bolt.

Beyond each end of the spring eye the bushing is enlarged radially adjacent the curved surface thereof and surrounding the periphery of this surface and also the periphery of the washer is a packing 51 of felt, cork, or similar material adapted to.

close the joint between the radially extending contracting surfaces of the bushing and the washer and thus prevent the escape of oil. This packingis held in place by an L-shaped retainer 52 formed of stamped metal and having one flange thereof extending over the packing and the other between the spring eye and the enlarged part of the bushing.

In this arrangement it will be seen that, as distinguished from the construction in Fig. 1. a separate retainer is provided for the packing at cach end of the spring eye, and the construction of parts at both ends of the bolt is the same.

In Fig. 7, another form of the invention is shown. in which washers 53 having radially extending spherical surfaces 54 thereon, which surfaces are outwardly projected,

head 57. This washer is provided on its outer surface with a semi-spherical bearing member 58. 0n each side'of the opening through which the bolt 59 passes a key 60 projects from the inner wall of the washer and engages a recess in the bolt to prevent the washer from turning the felt or cork packing. The retainer and the bushing are substantially the same as described with reference to Fig. 7.

Having thus described our invention. what we claim and desire to secure by Letters Patent is:

1. The combination with a spring shackle having separated arms and a bolt connecting said arms and adapted to draw the same toward one another, of a spring eye on the,

bolt between the arms, and a washer between one end of the spring eye and the adjacent arm of the shackle, said washer having a spherically surfaced joint at one side thereof.

2. In combination with a spring shackle having separated arms, a bolt connecting said arms, a spring having an eye engaging said bolt between the a'rms, and washers between the ends of the 'spring eye and the' shackle arms, said washers having spherically surfaced joints.

3. rIhe combination with a spring shackle having separated arms and a bolt connecting said arms and adapted to draw the arms toward each other, of a spring eye on the bolt between the arms, washers between the ends of the spring eye and the shackle arms, and means to retain a full bearing between the washers and the adjacent parts relative to which they move after an adjustment of the arms toward each other to take up wear.

4. The combination with a leaf spring having an eye, a shackle having an arm at either end of said eye, and a bolt connecting the arms and passing through the eye, of means forming a spherical wearing surface between the ends of the eye and the arms.

5. The combination with a leaf spring having an eye, a shackle having an arm at either end of said eye, and a bolt connecting the arms and passing through the eye, of means forming a rounded wearing surface between the ends of the eye and the arms.

6. The combination with a leaf springhaving an eye, a shackle having an arm at either end of'said eye, and a bolt connecting the arms and passing through the eye, and having means permitting adjustment of the ends of the arms toward each other to take upV wear, of means providing self-aligning wearing surfaces between the ends of the spring eye and said arms.

7. The combination with a leaf spring having an eye, a shackle having an arm at either end of said eye, and a bolt connecting the arms and passing through the eye, and. having means permitting adjustment of the ends of the arms toward each other to take up wear, of self-aligning means providing constant wearing surfaces between the ends of the spring eye and the arms both before and after adjustment of the arms toward each other totake up wear.

8. The combination with the eye of a leaf spring, a two-arm bracket, and a bolt connecting the arms and passing through said eye, of a bushing arranged between the bolt and the spring eye and having spherical ends 1n Contact with spherical surfaces on the arms of said bracket.

9, The combination with the eye of a leaf spring, a two-arm bracket, and a bolt connecting the arms and passing through said eye, of a bushing arranged between the bo-lt and the Spring eye and having enlarged ends forming washers between the ends of the spring eye and the arms of said bracket, and self-aligning bearing surfaces between said washers and said arms.

10. The combination with the eye of a leaf spring, a two-arm bracket, and a bolt connecting the arms and passing through said eye, of a bushing arranged between the bolt and the spring eye and having enlarged ends forming washers between the ends of the spring eye and the arms of said bracket, said washers having spherical surfaces, and means on the arms forming spherical surfaces in contact with the washers.

11. The combination with a spring bracket having spaced supporting arms, a spring having an eye arranged between said arms, a bolt connecting said arms and extending through said eye, and a nut on said bolt permitting adjustment of the arms toward each other to take up wear, of apair of washers at each end of the spring eye, one being connected to move with the eye and the 'other with the bracket, said washers having spherical contacting surfaces.

12. The combination with a spring bracket having spaced supporting arms, a spring having an eye arranged between said arms, a bolt connecting said arms and extending through said eye, and a nut on said bolt permitting adjustment of the arms toward each other to take up wear, of a pair of washers at each end of the spring eye,

one being connected to move with the eye and the other with the bracket, said washers having spherical contacting surfaces and a packing ring retained around each of the joints between the washers.

13. The combination with a spring bracket having spaced supporting arms, a spring having an eye arranged between said arms, a bolt connecting said arms and eX- tending through said eye, and a nut on said bolt permitting adjustment of the arms toward each other to take up wear, of a pair of washers at each end of the spring eye, one being connected to move with the eye and the other with the bracket, said washers having spherical contacting surfaces, a packing ring around each of the points between the washers, and a retaining annulus for each .of said rings secured between the spring eye and one of the washers.

14. In combination with a springshackle having arms provided with annular heads, a bolt, one of said parts having radially eX- tending portions at the end of said bolt, a spring eye surrounding said bolt, a bushing between said eye and bolt, said bushing having an annular radial flange at one end opposite said radial portion and an annular flexible packing extending across the joint between said parts to exclude dust and to retain the lubricant with-in thel members.

15. In combination with a spring eye, a shackle, a connecting joint, parts having radial contacting flanges adjacent the ends of said bolt and forming a radial joint between them and an annular packing of cork closing said joint..

16. A lubrication protector for spring-eye bearings comprising a pair of elements each having a cylindrical portion said cylindrical portions being adapted to enter opposite ends of a bearing and lie in contact therewith, and each having a cupped outer end.

17. A lubrication protector element for spring-eye bearings comprising a cylindrical portion having a cupped end, said cylindrical portion being adapted to be slipped longitudinally into said spring-eye from one end, while the cupped end lies beyond the springe e.

3718. A lubrication protector element for spring-eye bearings comprising a cylindrical portion having at one end an annular flange extending in a plane at right angles -to the longitudinal axis of said cylindrical portion, and also havin a second annular flange i portion presenting a continuous and unslipped longitudinally along said bushing 10 broken surface and having a cupped end, Within a spring-eye from opposite ends of said cylindrical portion being adapted to be the spring-eye, each cylinder being provided slipped longitudinally into said spring-eye with a flange.

5 from one end, and lie in Contact with the ln testimony whereof We affix our signav spring-eye bearing. tures.

20. A lubrication protector for spring-eye bearings comprising a pair of cylinders HAROLD D. CHURCH.

adapted to fit about a bushing., and to be EARL G. GUNN. 

